My honda runs great most of the time & starts to die down as if I'm running out of gas. I was told that maybe it was the egr valve but that won't it, just changed it but still doing the same thing. I drive 42 miles round trip work. Some days it runs perfect but sometimes act as if i'm running out of gas. Oh yea, i have tuned it up with a new fuel filter but hasn'nt helped my problem. HELP!!!!